Deodorizer for incinerators



Aug. 19, 1930. E. BREITWIESER 1,773,256

DEODOHIZER FOR INCINERATORS Filed Oct. 2, 1928 Patented Aug. 19, 1930 UNITED STATES l EDWARD BREITWIESER, OF BUFFALO, NEW YORK DEODORIZER FOR INCINERATORS Application led October 2, 1928. Serial No. 309,874.

This invention relates to a device for deodorizing the iue gases from an incinerator, and more particularly to such a device which is intended to be used in connection with household garbage and refuse incinerators so that the products of combustion of the incinerator are completely deodorized before escaping to the surrounding atmosphere.

,In household refuse incinerators as heretofore constructed it has been difficult to. provide an incinerator in which the obnoxious gases are completely burned and deodorlzed while in the combustion chamber or fire pot of the incinerator without the provision of expensive and delicate means to insure complete combustion of all the gases before leaving the fire p ot. The present invention therefore proposes a simple, inexpensive and effective. device for completely deodorizing the gases after they have left the combustion chamber of the incinerator, thereby permittin of employing a less expensive incinerator bot in polnt of construction and in point of gas consumption.

A further object is to rovide such a device which. can be used 1n connection with any type of incinerator and in which there are no moving parts subject to the heat of the flue gases.

A further object is to provide such a deodorizer which will not become clogged and,

. which can be operated economically and with a minimum consumption of gas. In the accompanying drawings:

Figure 1 is a vertical section through a deodorizer embodying' my invention and showing the same mounted on top of an incinerator of any usual Jform.

Figure 2 is a horizontal 22, Fig. 1.

Figure 3 is a line 3 3, Figure 1. 4

In its general organization this invention comprises a casing into which the flue gases from the incinerator are discharged, a burner surrounding the flue outlet for the incinerator and adapted to direct a plurality of Haines into the path of the flue gases, and a sectlon, on line horizontal section, taken on plurality of surfaces composed of fire clayl orl the like over which the gases must pass before escaping from the casing.

The'deodorizer is shown as applied to the top 5 of an incinerator, the top 5 being formed to provide an outlet flue or stack 6 project- 5K ing upwardly from the incinerator. The de0 dorizer is contained within a housing or caslng whlch is composed of a cylindrical metal wall 7, and a top 8 which is provided centrally with an outlet 9. The cylindrical Wall 7 is preferably lined with a heat resistance material 10 and is bolted to the top of the incinerator in an suitable manner as by an annular rin 11 w ich is L-shaped in cross section and is olted to the casing andto the top 5 of the incinerator. To attach the cylin. drical wall of the deodorizer to the top of the same the top is preferably provided with a downwardly rojecting annular flange 12 to which the cy indrical wall 7 is secured by 70 means of bolts 13. The outlet 9 in the top ofthe deodorizer is connected to a stack 14 which conducts the deodorized gasesto the exterior of the building.

At the lower end of the deodorizer a plurality of inwardly projecting brackets 15 are suitably secured to the inside of the incinerator and at their inner ends support the circular holder 16 which is `filled with fire clay 17 or other similar material. As best 80 vshown in Figs. 1 and 3 the circular. holder 16 is made of cast metal or 'the like which is formed to provide an imperforate bottom` 18, a side wall 19 and an inwardly projecting annular flange 20 at the upper end of the side 85 wall, this flange serving-to retain the fire clay 17 within the holder. Suitably Vset into the fire clay 17 of the holder. 16 are a plurality of pins or posts 21 which extend upwardly e from the upper surface of the fire clay 17 90 and serve to support the next succeeding holder 22. The holder 22 is substantially larger than the holder 16 and at its outer side contacts with the heat resistant lining 10 of the casing so as to form a relatively tight joint therewith. The flue gases escape past `thisholder 22 through a central opening 23 which extends centrally therethrough. This holder 22 is formed of a cast metal shell 24.-

which is filled with lire clay in the same manner as the holder 16. The holder 22 likewise carries pins or posts 21 which supports a third holder 25 which is similar to the holder 16, and this holder in turn supports a holder 26 similar to the holder 22 and a fifth holder 27 similar to the holder 16. By this means the Hue gases upon emerging from the incinerator outlet 6 are defiected laterally by the bottom 18 of the lowermost holder 16. The, flue gases thereupon pass over the fire clay 17 with which this holder'is filled and escape through the central opening 24 provided in the holder 22. The gases are then deflected laterally over the fire clay contained in the holder 22 b the holder 25, and this process is continue until the flue gases have passed over the lire clay surfaces in each of the y holders and escape through the outlet stack 14. By this means the holders act as baflles and the flue gases are compelled to traverse a circuitous path through the deodorizer a's\ indicated by the arrows and are compelled to pass over the fire clay surfaces in each of the holders.

Immediately upon leaving the outlet 6 of the incinerator the flue gases are `compelled to pass through or in intimate contact with a plurality of flames from a gas burner 28. As shown in Fig. 1 this burner is composed of a hollow circular portion or head 29 which surrounds the outlet 6 and is provided in an upperl side with a plurality of ports 30 which direct flames against the under side of the lowermost holder 16. This head 29 is supplied with gas through a neck 31 which extends through the cylindrical wall 7 of the casing and is provided with the usual mixer 32 and gas suppl :pipe 33.

It is apparent tliat upon leaving the incinerator outlet 6 the gases from the incinerator are deflectedlaterally by the bottom 18 of the lowermostholder 16 and are compelled to pass through and in intimate contact with the circle of flames which are directed upwardly against the under side of the holder 16 b the burner 28. The gases are thereby heated to a com aratively high temperature of at least 400 E and upon successively passing over the uppersurfaces of the tire clay contained in the holders, heat the fire clay ink these holders to substantially this same temperature. .By the provision of a series of fire clay surfaces, the relatively high temperature is maintained throughout. the passage of the as through the deodorizer, and it has been ound that when the tine gases are discharged from the deodorizer all of the constituents in the gases which give4 rise to obnoxious and objectionable odors are completely consumed. In order to insure the complete consumption of the gases. auxiliary air inlet ports 34 are 'Illovided in -the lower part of the casing.

ese ports supply air to the hotgases after the gases have passed over the burner 28 and thereby furnish the necessary supply of oxyen to consume the obnoxious constituents in t e gases.

It is obvious that the design can be altered very substantially without departing from the scope of my invention and that the number and the size of the various baiiles or holders can be increased or diminished depending upon the conditions of incineration of the incinerator and the degree to which the deodorizing treatment is necessary.

It has been found that the deodorizer embodied in the present invention is entirely effective in removing the objectionable odors from the flue gases of incinerators and thereby completely does away with the usual foul atmosphere which follows the burning of garlarly objectionable to the neighbors. his deodorizer is also extremely simple in its operation and construction and can be produced at a "very low cost thereby permitting it to be applied to standard incinerators without materially increasing the cost of the incinerating unit. The deodorizer is also durable and is not liable to clog up with soot and dirt and since it contains no moving parts is not liable to get out of order and will continue to give efficient and satisfactory serviceover a long period of time. The deodorizer also is very low in" gas consumption and permits of a smaller'gas consumption in the incinerator in view of the fact that incineration to the extent of completely deodorizing gases while in the incinerator is rendered unnecessary with the provision of this deodorizer and hence a total saving in gas consumption for the incineration of refuse or other material is effected by the present device.

I claim as my invention: l

A device for deodorizing Hue gases from an incinerator, comprising a casing having an inlet at its lower end, an outlet at its upper end, a burner arranged adjacent said inlet and adapted to direct a flame into the path of said gases, and two series of spaced horizontal baflles arranged in alternate relation above said inlet, each balile of one series comprising a relatively small imperforate metal holder and a fire clay filling in said holder, and each baille of the `other series comprising a rela# tively large metal holder formed to' rovidel an opening through its center and a e clay filling in said holder, are caused to traverse a circitous path throughl said casing and over the lire clay surfaces.

In ltestimony whereof I hereby aiiix my signature.

EDWARD BREITWIESER.

vbage in the usual incinerator and is articuwhereby the flue gases 

